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Standards for distribution models in biodiversity assessments.

Miguel B Araújo1,2,3, Robert P Anderson4,5,6, A Márcia Barbosa3

  • 1National Museum of Natural Sciences, Spanish National Research Council (CSIC), 28006 Madrid, Spain.

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|February 13, 2019
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Summary

Assessing species distribution models for biodiversity is crucial. A review found overall low adequacy, but noted improvements in model building and data over time, urging standardized practices for better biodiversity assessments.

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Area of Science:

  • Ecology
  • Conservation Biology
  • Biodiversity Science

Background:

  • The demand for robust models in biodiversity assessments is increasing.
  • Evaluating the adequacy of species distribution models (SDMs) for these assessments is critical.
  • Existing SDMs may not consistently meet the rigorous standards required for biodiversity assessments.

Purpose of the Study:

  • To propose best-practice standards and guidelines for scoring SDM studies.
  • To assess the adequacy of SDMs used in biodiversity assessments over the past two decades.
  • To identify trends in the quality of SDMs and their components.

Main Methods:

  • Developed a set of best-practice standards and detailed guidelines for evaluating SDMs.
  • Reviewed and scored 400 SDM studies published in the last 20 years.
  • Analyzed trends in model building, biological data, and model evaluation.

Main Results:

  • Overall model adequacy for biodiversity assessments was found to be low.
  • A significant improvement in model building quality was observed over time.
  • Moderate improvements were noted in the quality of biological data and model evaluation.

Conclusions:

  • Implementing agreed-upon standards for SDMs will enhance transparency and repeatability.
  • Higher quality models and inferences are achievable through standardization.
  • Community participation is encouraged for the ongoing development of SDM standards.